1.MAIL> SHOW FILE
      Your current mail file is DISK$:[ARAS]MAIL.MAI;2
      MAIL> 2
      MAIL> COPY
      _Folder: LIMERICKS
      _FILE: JOKES
      File DISK$:[ARAS]JOKES.MAI; does not exist.
      Do you want to create it (Y/N, default is N)? y
      %MAIL-S-CREATED, DISK$:[ARAS]JOKES.MAI;1 created

      MAIL> SET FILE JOKES
      MAIL> SHOW FILE
      Your current mail file is DISK$:[ARAS]JOKES.MAI

      This example demonstrates how to use the SHOW FILE command
      to display the name of the mail file that is currently open
      (MAIL.MAI). The COPY command creates a new folder (LIMERICKS)
      and a new mail file (JOKES) and copies message 2. The SET FILE
      command opens the mail file named JOKES.MAI that you just
      created. Note that you must be reading a message to copy it
      or you get the following message:

        %MAIL-E-NOTREADIN, you aren't reading a message.